// Copyright 2018 Grass Valley, A Belden Brand

// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at

//     http://www.apache.org/licenses/LICENSE-2.0

// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#pragma once
/*
**  
*/

// --- Headers ---------------------------------------------------------------------------

#include "QKernelBase.h"
#include "cFixedSizeAllocator.h"

// --- Start of Namespace ----------------------------------------------------------------

namespace vfs
{




// =======================================================================================
// === cMemoryViewImpl ===================================================================
// =======================================================================================

class cMemoryViewImpl : public cRefCount
{
  friend class cMemoryView;

  public :

    cMemoryViewImpl(cMemory::Ptr Memory, const size_t ByteOffset, const size_t NumBytes, cPtr<iMemoryObserver> Observer = cPtr<iMemoryObserver>());
    ~cMemoryViewImpl();
    size_t       getSize() const;
    size_t       getAlignedSize() const;
    void         setSize(const size_t NewNumBytes);
    size_t       getOffset() const;
    void         setOffset(const size_t NewByteOffset);
    char *       getBytes() throw(cNotAvailable);

    cMemory::Ptr getPrivateMemory(size_t * const OptionalByteOffset /* can be null */) const;
    String       getName() const;

  private :

    unsigned int m_ClassVersion;

    cMemory::Ptr m_Memory;
    size_t m_ByteOffset;
    size_t m_NumBytes;
    cPtr<iMemoryObserver> m_Observer;
};




// --- End of Namespace ------------------------------------------------------------------

}
